Windows only: Freeware software IObit Uninstaller removes multiple applications at once, scans the registry for leftovers, and also removes annoying browser toolbars with a single click.

IObit Uninstaller is the same type of application as Lifehacker favorite Revo Uninstaller—it helps remove multiple applications at the same time, and then cleans up anything left in the registry that the regular uninstaller might have missed. It's not as full-featured or powerful as Revo Uninstaller, but where it stands apart is the browser toolbar detection—it can check for toolbars that aren't listed in Control Panel, and allow you to remove them easily. IObit Uninstaller is a free download for Windows only.

Update: It's come to our attention that IObit has used code from another company's product without permission, and while this application scans clean at VirusTotal and we tested it without issues, we feel obligated to retract any recommendation.